Xinjiang Wancheng 02-1 Block FLAC3D Simulation And Analysis Of Retaining Structure Of Bored Piles

Since the reform and opening up of China,the economic and technology rapid development,the quantity of urban high-rise is become more and more,the depth of foundation pit is also more and more deep.Foundation pit engineering is a very complex project,not only to ensure the construction process is safe and effective,but also to ensure the safety of construction personnel and the surrounding buildings.Therefore,with the analysis of the foundation pit deformation law,needding through the informatization construction,timely understanding of retaining structure in the process of construction state,and timely feedback to the design and construction.On the basis of soil mechanics and the related of foundation engineering,for the 02-1 block of yangpu district of Shanghai Xinjiang Wancheng foundation pit to study the supporting scheme,using FLAC3D considering foundation pit under the three conditions of the surrounding environment of foundation pit excavation simulation and analysis,research with the increasing of excavation depth of foundation pit,soil horizontal displacement and vertical settlement of foundation pit and soil in the X,Y direction of the axis' stress and inner supporting axial force change.Also including of the retaining structure horizontal displacement and vertical settlement,the pillar of settlement and lateral displacement of the retaining structure in the direction of the depth of soil,such as the content of the monitoring and analysis.By FLAC3D comparing the foundation pit simulation results with the monitoring data of foundation pit,the simulation results and monitoring data of displacement of foundation pit,strut axial forces.In the process of the future design of foundation pit engineering,can use FLAC3D software to predict the development and the maximum displacement of foundation pit supporting structure and analysis,providing a reference for engineering practice.